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Spring position breakdown: Pac-12 North offensive lines

With spring practice underway at many Pac-12 destinations, it's time to do our annual position-by-position breakdown.

Today, we'll finish up the offense with a look a the offensive lines. And to change things up, we'll go with the North first.

Cal: The Bears are set on the left side with left tackle Steven Moore (sitting out spring) and left guard Chris Borrayo returning, but began spring practice looking to find permanent solutions for the other three spots. Jordan Rigsbee played right tackle last year, but will likely slide inside leaving center and right tackle as the primary spots for competition. Matt Cochran is the clear name to watch at center, while right tackle is less defined with Dominic Granado and Vincent Johnson the most obvious candidates. Walk-on Addison Ooms has been a bright spot early in spring practice and looks like he could push at center or guard (possibly keeping Rigsbee at right tackle).

Oregon: First, the obvious -- losing center Hroniss Grasu and left tackle Jake Fisher hurts. But after the Ducks showed they can mix-and-match with varying degrees of success -- they used eight different starting combinations in 2014 -- there is reason for optimism. Tyler Johnstone, who missed all of last season with an ACL tear, will be back at left tackle, where he’ll likely play alongside Matt Pierson. Doug Brenner, Cameron Hunt and Jake Pisarcik are in the mix on the interior, while Tyrell Crosby has a leg up at right tackle.

Oregon State: Offensive line could be one of the Beavers’ strengths next season as they return the five players who finished last season atop the depth chart. Of course, with a new coaching staff it’s hard to know to what degree that matter, but experience counts for something. Tackle Sean Harlow started all 12 games (five at right tackle, seven at left tackle); Josh Mitchell started every game at center; Gavin Andrews started 10 games between the two tackle spots and at right guard; Dustin Stanton started six games at right tackle; and Fred Lauina started the final five games at left guard. Kammy Delp and Robert Olson will also compete for time.

Stanford: With Andrus Peat off to the NFL as a likely first-round draft pick, Kyle Murphy will flip from right to left tackle along what is now an experienced line. Joshua Garnett could be in line for an all-conference type season at left guard, next to center Graham Shuler. Questions remain on the right side, where Casey Tucker projects at tackle, but Johnny Caspers and Brendon Austin will compete at right guard.

Washington: The Huskies face a difficult rebuild after coming into 2014 with a very experienced unit. Siosifa Tufunga and Dexter Charles, both at guard, are two good pieces to start with, while Jake Eldrenkamp and Coleman Shelton are the odds-on-favorites -- if only slightly -- at tackle. Others to watch include Shane Brostek, Dane Crane and Andrew Kirkland. There’s still more questions than answers at this point and spring will especially important for this group.

Washington State: The Cougars stayed relatively healthy on the offensive line with left tackle Joe Dahl, left guard Gunnar Eklund and right guard Eduardo Middleton all starting all 12 games. Center Riley Sorenson started 10 games and right tackle Cole Madison started nine, while Sam Flor (two at center) and Jacob Seydel (started final three at right tackle) also received starting experience. All seven of those players have eligibility remaining, but WSU has yet to release a spring roster.